Weekends always last longer when you carry a spare. There is not a better way to be prepared when you are out on the lake skiing and you need to replace your propeller, so the day does not end early. These propeller cases come with a protective pocket to keep your spare propeller safe, along with the propeller puller, and an extra nut, key and cotter pin. Everything you need to keep the day going is well within reach when you carry your spare propeller in one of these affordable case sets.